Speaking to reporters aboard Air Force One en route to Joint Base Andrews, Trump said, "I do see a deal in Iran, yeah. Could be soon."

"So we've had very good negotiations today with Iran, getting a lot of the things that they should have given us a long time ago. See how it works out, but they're very good, moving along very nicely. And they've destroyed a lot of additional targets today. The Navy's gone, the Air Force's gone, we know that. We've destroyed many, many targets today. It was a big day. And we are negotiating with them directly and indirectly," he said further.

Trump added that his reversal of the Joint Comprehensive Plan of Action (JCPOA) by former US President Barack Obama resulted in the prevention of Iran from acquiring a nuclear weapon.

The original JCPOA (signed by the P5+1 and the EU) was designed to limit Iran's nuclear program in exchange for sanctions relief--a framework Trump has systematically dismantled in favour of a new, yet-to-be-finalised agreement.

Trump mentioned that Iran initially agreed to send 10 boats, and then added 10 more, which he considers a positive development.